Company · Ownership research

SIGA TECHNOLOGIES INC SIGA

CIK 0001010086 · CUSIP 826917106

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 826917106 (SIGA), not CUSIP 826917906 (SIGA), CUSIP 826917956 (SIGA), and does not merge CUSIPs.

This page lists the top 20 of 145 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	BlackRock Inc. CIK 1364742 · View history	$29.58M 3,455,309 shares	0.00%	-58.58K(-1.70%)Reduced	SEC filing ↗ May 10, 2024	▾
02	FIRST WILSHIRE SECURITIES MANAGEMENT INC CIK 732847 · View history	$22.72M 2,654,255 shares	6.65%	+292.15K(+12.40%)Added	SEC filing ↗ May 15, 2024	▾
03	VANGUARD GROUP INC CIK 102909 · View history	$19.55M 2,283,612 shares	0.00%	+41.52K(+1.90%)Added	SEC filing ↗ May 10, 2024	▾
04	VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. CIK 1367401 · View history	$18.86M 2,203,508 shares	0.23%	-70.85K(-3.10%)Reduced	SEC filing ↗ May 14, 2024	▾
05	AltraVue Capital, LLC CIK 1740837 · View history	$17.49M 2,043,196 shares	1.90%	0(0.00%)Unchanged	SEC filing ↗ May 13, 2024	▾
06	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$14.45M 1,687,905 shares	0.00%	-10.25K(-0.60%)Reduced	SEC filing ↗ May 10, 2024	▾
07	FEDERATED HERMES, INC. CIK 1056288 · View history	$13.50M 1,576,585 shares	0.03%	-1.64M(-51.00%)Reduced	SEC filing ↗ May 14, 2024	▾
08	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$13.08M 1,528,010 shares	0.00%	-119.44K(-7.30%)Reduced	SEC filing ↗ May 15, 2024	▾
09	STATE STREET CORP CIK 93751 · View history	$10.11M 1,104,405 shares	0.00%	+50.55K(+4.80%)Added	SEC filing ↗ May 15, 2024	▾
10	HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC CIK 1164833 · View history	$9.34M 1,091,160 shares	0.03%	+66.20K(+6.50%)Added	SEC filing ↗ May 14, 2024	▾
11	ROYCE & ASSOCIATES LP CIK 906304 · View history	$9.19M 1,073,743 shares	0.08%	-682.57K(-38.90%)Reduced	SEC filing ↗ May 13, 2024	▾
12	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$8.89M 1,038,801 shares	0.00%	+17.15K(+1.70%)Added	SEC filing ↗ May 13, 2024	▾
13	JUPITER ASSET MANAGEMENT LTD CIK 1215838 · View history	$8.59M 1,003,981 shares	0.08%	0(0.00%)Unchanged	SEC filing ↗ May 10, 2024	▾
14	GENERAL AMERICAN INVESTORS CO INC CIK 40417 · View history	$6.35M 741,727 shares	0.47%	-51.31K(-6.50%)Reduced	SEC filing ↗ May 3, 2024	▾
15	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$5.03M 587,573 shares	0.00%	+587.57KNew	SEC filing ↗ May 15, 2024	▾
16	MORGAN STANLEY CIK 895421 · Amended · View history	$4.99M 583,144 shares	0.00%	+180.27K(+44.70%)Added	SEC filing ↗ Oct 17, 2024	▾
17	Uniplan Investment Counsel, Inc. CIK 1520710 · View history	$4.91M 573,700 shares	0.39%	+2.02K(+0.40%)Added	SEC filing ↗ May 15, 2024	▾
18	D. E. Shaw & Co., Inc. CIK 1009207 · Amended · View history	$4.69M 548,238 shares	0.01%	-163.49K(-23.00%)Reduced	SEC filing ↗ May 15, 2024	▾
19	NORTHERN TRUST CORP CIK 73124 · View history	$4.14M 483,251 shares	0.00%	-6.98K(-1.40%)Reduced	SEC filing ↗ May 14, 2024	▾
20	BANK OF AMERICA CORP /DE/ CIK 70858 · Amended · View history	$3.78M 441,022 shares	0.00%	+150.60K(+51.90%)Added	SEC filing ↗ May 15, 2024	▾

Showing 20 / 145 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

145

Cancelled or null records excluded

Disclosed shares

33,580,755

Not deduplicated across managers

Disclosed value

$288.08M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

SIGA TECHNOLOGIES INC · Q1 2024

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.